The Reaserch And Performance Analysis Of Distributed Network Coding Aware Routing In Wireless Networks

In recent years, computer equipment explosion caused great pressure to the computer network with the development of the entire computer industry. In order to avoid making computer users to heavily increase in network equipment and get better quality of network services, researchers have proposed network coding scheme which had get recognized by the industry and there are a lot of persons in continue in-depth research in this field. Network coding technology is mainly used to increase the overall performance of the network, these properties are mainly received by the delay to scalar data packets through the network throughput and the nodes in the network.Currently, the research about network with coding and routing protocols in combining is still new stage. Among them, the most well-known is distributed coding-aware routing protocol, namely Distributed Coding-Aware Routing in Wireless Networks(DCAR). The author studied DCAR routing protocols in-depth analysis, research and find out the disadvantage of DCAR agreement deficiencies in practical application, through the inadequacies improvements come in and propose a new wireless network coding routing protocol. This new protocol is relatively primitive DCAR, it is mainly focuse d on improving the following aspects. 1. The transmission rate of data packets for each of the routing protocol, the data link is a variable, rather than in the DCAR protocol which is a fixed value; 2.Tach of the packet loss rate on the link is a variable to conform to the actual situation; 3.The above variables from the two data streams are to extend over multiple data streams. 4. Taking into account the plurality of data traffic throughout the network environment due to changes in the physical environment, which is brought about by the whole changes in the network environment, and these changes to the rate of con version of each data stream at some node sends a packet, that is, when the packet rate is zero, disguised think this article link fracture has occurred, through such methods can better reflect the new DCAR protocol performance in the whole actual network.Finally, I used the simulation platform which is called NS2 to implement the extended DCAR protocol and the simulation results show that the comprehensive method described above, the new DCAR protocol, can achieve better network performance, mainly in the network as a whole throughput is improved.